Die straightener



1,544,360 5. M. UDALE ET AL DIE STRAIGHTENER Filed Jan. 19, 1923 Juhe 30, 1925.

2 Sheets-Sheet 1 STANLEY M.UDA D WALTER 5. ANDER L E v so YIVVI'L'VTORj ATTORNEY.

Fla; II

June 30, 1925.

1,544,360 5. M. UDALE ET AL DIE STRAIGHTENER Filed Jan. 19. 1923 2 Sheets-Sheet 2 III Fle v FIG. IV

I STANLEY M. UDALE. s WALTER S. ANDERSON INVENTORS T ATTORNEY.

Patented June 30, 1925. v

UNITED STATES PATENT OFFICE.

STANLEY M. UDAIIE AND WALTER S. ANDERSON, 015 DETROIT, MICHIGAN, ASSIGNORS TO EARL HOLLEY, OF DETROIT, MIGHIGAN.

DIE STRAIGHTENER.

Application filed January 19, 1923. Serial No. 613,682.

To all whom it may concern:

Be it known that we, STANLEY M. UDALE and WALTER S. ANDERSON, citizens of the United States, residing at 893 Lothrop Ave.

and 1602 Parkview Ave., Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Die Straighteners, of which the following is a specification.

This invention relates to an improved metal mold and Specifically provides means whereby the mold may be adjusted after it has been heated to take care of distortion.

Figure I shows, in elevation, the mold and support. I

Figure II shows a cross sectional elevation on the plane X-Y.

Figure III shows a cross sectional elevation on the plane UV.

Figures IV, V and VI show alternative constructions.

Figure IV shows, in elevation, the mold and support.

Figure V shows a cross sectional elevation on the plane W-W.

Figure VI shows a cross sectional elevation on the plane ZZ.

pescm'ptz'on.In Figures I, II and III, A is a hollow mold, B is a slot extending through the rear and side walls of A, the purpose of which will be described later, G is a support to which the-mold A is bolted by means of the set screws D, E, F, G, which are in tension. H, I, J, K, L, M, N, O are set screws provided for the purpose of adjusting the mold by applying pressure against the rear of the mold.

In Figures IV, V and VI, P is the 1101- low mold, Q is a slot extending through the rear and side walls of P, T is the mold support, R is a bolt clamping the mold P to the. support T, this mold being always in tension. S, S, S", S are four adjusting set screws which apply a pressure to the rear of the hollow mold to balance the tension in the central bolt R.

Adjustwwnt.The adjustment, in Figures I, II and III, of the mold is as follows:

' lVhen the mold is in use the working surface of the mold A becomes hot and the rear surface tends to remain relatively cool so-that the working surface of the mold A becomes convex. To avoid leaky molds it is necessary to counter-act this tendency of the working face of the mold A to become convex by adjusting the set screws H, I, J, K, L, M, N, 0 By reason of the slot' B the mold A is sufliciently flexible to yield to the pressure exerted by the set screws so that the distortion due to the unequal heating of the mold can be taken care of by this simple means.

In Figures IV, V and VI, the bolt R applies a pull on the center of the mold and the set screws S, S, S, S apply a corresponding and equal thrust. The result is that the tendency of the mold to become concave is neutralized and the mold can be i held true by merely adjusting the four set screws S, S, S, S and exerting a'pull on the centralbolt R.

If a leak develops during actual operation a half turn on the bolt R will immediately check the leak and permit the operation to continue.

What we claim is:

1. A hollow mold adapted to receive molten metal, having a molding surface, a rear wall and four side walls, a slot extending through the rear wall and two side walls, a mold-support, bolts clamping the mold to said support, set screws for counter gcting the distortion of the molding surace.

2. A hollow mold adapted to receive a plurality of points on the rear of the hollow mold to counteract the distortion of the molding surface.

In testimony whereof we afiix our signa tures.

STANLEY M. UDALE. WALTER S. ANDERSON. 

